Shoe heel machine



I Feb. 21, 1933. ouss 1,898,044

SHOE HEEL MACHINE Filed July 22, 1931 2 Sheets-Sheet 1 Fig. 2.

Inventor A.F. Froussard Att' y.

Patented Feb. 21, 1933 PATENT OFFICE ALBERT F. FROUSSARD, OF ST. LOUIS, MISSOURI SHOE HEEL MACHINE Application filed July 22,-

My invention relates to a shoe heel machine and particularly to improvements in that type of machine shown and described in application Serial No. 517,218 filed by me February 20, 1931. One object of my invention is to provide means for driving the cutting and pressing plungers simultaneously while controlling the movement by two independently movable detents.

Another object of my invention is to provide a" support for one of the cutting dies whereby pressure is taken off the shoe during the cutting operation, and to im- .prove the forms of the dies and then ad- 'justment.

Still another obiect of my invention is to provide an improved form of adjustable last support for cooperation with the pressing plunger.

In the accompanying drawings Flgure 1 is a front elevation; Figure 2 is an enlarged side View, one of the driving pulleys being broken away; Figure 3 is a detail view of the cutting plunger and its cooperating die 5 support, the retaining plate being removed; Figure 4: is an enlarged section taken on the line t-i of Figure 8; Figure 5 is a bottom plan view of the upper cutting die; Figures 6 and 7 are a side elevation and a longitudinal section, respectively, of the upper cutting die; Figure 8 is a bottom plan V ew showing a modification of the upper cutting die; Figure 9 is a top plan V ew of the last support; Figure 10 is a side v ew of the last support; Figure 11 is a detail view of the driving shaft; and Figure 12 is a section taken on the line 12-12 of Figure 1.

The frame of the machine mounted on a support or stand 1 comprises a base plate 2, a pair of side frames 8 and 4, respectively, and an intermediate frame 5. The

upper ends of the frames are connected by a shaft 6. Pivotally mounted on this shaft -between the frames 3 and 5 is one link of a toggle 7 for actuating the cutting plunger 8. Pivotally mounted on the shaft between the frames 4 and 5 is one link of a toggle 9 for driving the pressing plunger 10. The toggles are actuated by the eccentric straps 11 of eccentrics 12, which are carried in re- 1931. Serial No. 552,304.

verse position 011 the driving shaft 18. Loosely mounted on the ends of the driving shaft are the driving pulleys 1i. Carried on the shaft 13, adjacent each of the driving pulleys, is a clutch disc 15.' In each of 5 the discs is mounted a single clutch pin 16, the pins being reverselyr positioned in the two discs, as shown in Figure 11 where the openings 17 for the reception of these pins are shown in dotted lines. Each of the pins cooperates with a movable retractor 18. The details of the clutch mechanism are not shown as they are similar to those shownin Patent N o. 1,721,902granted to me July 23, 6

The plunger 8 reciprocates between forwardly projecting cheek pieces 19 and is held 111 place by a removable retaining plate 20. Mounted in the lower end of the plung- P er 8 is the upper cutting die, shown in detail in Figures 5 to 7. This die comprises a backing plate 21 having a downwardly projecting portion 22, preferably integral therewith, a loop-cutting blade 23, and a' transverse blade 24. The projection 22 is tion by screws to permit their removal for 8G sharpening. In Figure 8 I have shown a, modification in which the shape of the blades is changed to accommodate a different style of shoe. The upper cutting die cooperateswith a lower cutting die 25 secured to a supporting plate 26 by screws 27. The supporting plate is carried in a yoke 28, shown in detail in Figure 3, and is movable in a horizontal plate both laterally and forwardly by set screws 29 in order to secure perfect register of the two cutting dies. The yoke embraces the cheek pieces 19 and is vertical- 1y adjustable by means of set screws 30 hearing on the upper edges of the cheek pieces, and is clamped in position after adjustment by'abolt 31 passing through a slot 32 in one side of the yoke engaging with one of the cheek pieces. To aid in guiding the plunger 8, the yoke has secured to it a, pair of front guide plates 33 and a rear guide plate 34.

A brace bar 35 is also secured to the rear edges of the two sides of the yoke.

Carried in the lower face of the plunger 10 is a pressing die 36 which may be of any desired form. The last carrying the shoe to be pressed, is placed upon a supporting pin 37 which is mounted on a base 38 laterally movable in a slide 39 which is movable forwardly and rearwardly in a guide block 40. The last does not rest upon the base 38 but upon a support 41 rotatable around the pin. This construction not only permits the proper positioning of the shoe under the pressing die, due to the possibility of moving the last laterally as well as forwardly and rearwardly, but greatly facilitates the presentation of the shoe to the die at the proper angle due to the rotatability of the last support.

The operation of the machine is similar to that of the machine described in my prior application, above referred to. However, in the present structure alternate reciprocation of the two plungers is secured, which I have found more satisfactory for this class of work than the independent operations of the plungers. Further, in the present structure the sole is supported while being cut so that no pressure is sustained by the shoe and its supporting last during the operation.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a device of the class described, the combination with a plunger, of a die carried thereby, a pair of cheek pieces forming a guide way for said plunger, a yoke suspended from said cheek pieces, a die carried by said yoke and cooperating with the first named die, and means for vertically adjusting the yoke with respect to the cheek pieces, whereby the cooperation of the dies may be regulated without varying the stroke of the plunger.

2. a device of the class described, the combination with a plunger, of a die carried thereby, a pair of cheek pieces forming a guide way for said plunger, ayoke suspended from said check pieces, a die carried by said yoke and cooperating with the first named die, a pair of set screws carried by the yoke and bearing on the upper faces of the cheek pieces, whereby the yoke may be adjusted vertically with respect to the cheek pieces, and a clamping screw passing through the yoke into one of the cheek pieces.

3. In a device of the .class described, the combination with a plunger, of a pair of cheek pieces forming a guide way for said plunger, a yoke suspended from said cheek pieces, an adjusting screw carried by said yoke and bearing on the upper edge of one of said cheek pieces to vary the position of the yoke relative to the plunger, clamping means to secure the yoke after adjustment,

a plate mounted in said yoke and forming a cutting die, and a cooperating die carried on the under face of said plunger.

4. In a device of the class described, the combination with a plunger, of a pair of cheek pieces forming a guide way for said plunger, a yoke suspended from said cheek pieces, a supporting plate carried in said yoke, means for adjusting said supporting plate in a horizontal plane, a die plate removably secured to said supporting plate, and a cooperating die carried on the under face of said plunger.

5. A die for shoe heel machines comprising a backing plate carrying on its lower face a U-shaped projection, said plate extending beyond said projection at the sides and rear but flush with the front edge thereof, a loop-shaped cutting blade carried by and conforming to said projection, and a transverse blade secured to the front edge of said plate and forming continuations of the arms of said first named blade.

In testimony whereof, I hereunto affix my signature, this 20th day ofvJuly, 1931.

ALBERT F. FROUSSARD. 

